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#include <vector>
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#include <algorithm>
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#include <numeric>
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#include <iterator>
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#include <functional>
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#include "iota.h"
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#include "cppunit/cppunit_proxy.h"
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#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
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using namespace std;
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#endif
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//
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// TestCase class
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//
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class PermTest : public CPPUNIT_NS::TestCase
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{
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CPPUNIT_TEST_SUITE(PermTest);
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CPPUNIT_TEST(nextprm0);
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CPPUNIT_TEST(nextprm1);
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CPPUNIT_TEST(nextprm2);
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CPPUNIT_TEST(prevprm0);
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CPPUNIT_TEST(prevprm1);
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CPPUNIT_TEST(prevprm2);
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CPPUNIT_TEST_SUITE_END();
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protected:
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void nextprm0();
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void nextprm1();
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void nextprm2();
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void prevprm0();
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void prevprm1();
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void prevprm2();
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(PermTest);
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//
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// tests implementation
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//
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void PermTest::prevprm0()
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{
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int v1[3] = { 0, 1, 2 };
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prev_permutation(v1, v1 + 3);
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==0);
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}
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void PermTest::prevprm1()
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{
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vector <int> v1(3);
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__iota(v1.begin(), v1.end(), 0);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==0);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==1);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==0);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==2);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==2);//
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CPPUNIT_ASSERT(v1[2]==1);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==2);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==0);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==1);
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prev_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==0);
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}
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void PermTest::prevprm2()
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{
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vector <int> v1(3);
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__iota(v1.begin(), v1.end(), 0);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==1);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==2);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==0);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==1);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==0);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==2);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==1);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==2);
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prev_permutation(v1.begin(), v1.end(), greater<int>());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==0);
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}
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void PermTest::nextprm0()
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{
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int v1[3] = { 0, 1, 2 };
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next_permutation(v1, v1 + 3);
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==1);
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}
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void PermTest::nextprm1()
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{
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vector <int> v1(3);
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__iota(v1.begin(), v1.end(), 0);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==1);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==2);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==0);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==1);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==2);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==0);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==2);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==1);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==0);
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CPPUNIT_ASSERT(v1[2]==2);
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next_permutation(v1.begin(), v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==0);
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}
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void PermTest::nextprm2()
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{
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vector <char> v1(3);
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__iota(v1.begin(), v1.end(), 'A');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='A');
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CPPUNIT_ASSERT(v1[1]=='C');
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CPPUNIT_ASSERT(v1[2]=='B');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='B');
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CPPUNIT_ASSERT(v1[1]=='A');
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CPPUNIT_ASSERT(v1[2]=='C');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='B');
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CPPUNIT_ASSERT(v1[1]=='C');
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CPPUNIT_ASSERT(v1[2]=='A');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='C');
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CPPUNIT_ASSERT(v1[1]=='A');
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CPPUNIT_ASSERT(v1[2]=='B');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='C');
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CPPUNIT_ASSERT(v1[1]=='B');
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CPPUNIT_ASSERT(v1[2]=='A');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='A');
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CPPUNIT_ASSERT(v1[1]=='B');
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CPPUNIT_ASSERT(v1[2]=='C');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='A');
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CPPUNIT_ASSERT(v1[1]=='C');
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CPPUNIT_ASSERT(v1[2]=='B');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='B');
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CPPUNIT_ASSERT(v1[1]=='A');
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CPPUNIT_ASSERT(v1[2]=='C');
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next_permutation(v1.begin(), v1.end(), less<char>());
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CPPUNIT_ASSERT(v1[0]=='B');
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CPPUNIT_ASSERT(v1[1]=='C');
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CPPUNIT_ASSERT(v1[2]=='A');
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}
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